| 一种卫星钟差精度评估方法 |
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| 引用本文： | 于合理,郝金明,刘伟平,田英国,廖琪.一种卫星钟差精度评估方法[J].海洋测绘,2014(2):11-13. |
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| 作者姓名： | 于合理 郝金明 刘伟平 田英国 廖琪 |
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| 作者单位： | 解放军信息工程大学导航与空天目标工程学院,河南郑州450052 |
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| 摘 要： | GNSS观测量测量的是测站与卫星间的相对时间延迟,卫星钟差求解的是相对于基准钟的相对钟差,因此卫星钟差的精度评估方法不同于其他GNSS产品。分析了卫星钟差的精度评估方法,采用消除卫星钟系统偏差的方法进行钟差精度的评估,得到的各产品的精度评定结果与各产品公布的钟差精度基本一致,证明了此方法的有效性。
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| 关 键 词： | 全球导航卫星系统 时间延迟 基准钟 相对钟差 系统偏差 精度评估 |
Method of Accuracy Assessment of Satellite Clock Error |
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| YU Heli,HAO Jinming,LIU Weiping,TIAN Yingguo,LIAO Qi.Method of Accuracy Assessment of Satellite Clock Error[J].Hydrographic Surveying and Charting,2014(2):11-13. |
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| Authors: | YU Heli HAO Jinming LIU Weiping TIAN Yingguo LIAO Qi |
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| Institution: | (College of Navigation and Aerospace Engineering, Information Engineering University, Zhengzhou 450052, China) |
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| Abstract: | For GNSS observations,one measures the relative time delay between receivers and satellites.While satellite clock errors describe the relative clock error related to the reference.Therefore,the accuracy assessment of clock errors is different from other GNSS products.This paper analyzes the methods to evaluate the accuracy of satellite clock errors,and assesses the accuracy after eliminating systematic clock bias.The result of accuracy assessment of the product is consistent with announcement precision of the product.The results indicate that this method is effective. |
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| Keywords: | GNSS time delay reference clock relative clock error systematic bias accuracy assessment |
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